4. Given the data shown, what two substances does the unknown mixture contain? Substance Appearance

Vinegar

Litmus

(ph)

R-B Base

B-R Acid

Biuret

(protein)

lodine

(starch)

Powder

0

+

Baking

Powder

Baking

Soda

Corn

Starch

Powder

Base

+

Powder

0

Gelatin

Crystal

Acid

+

Salt

Crystal

0

Unknown

Acid

Crystal

& Powder

Mixed

Mixed

A. Gelatin and baking powder

B. Gelatin and baking soda

C. Gelatin and corn starch

D. Salt and corn starch

Bis the

English , i don't understand spanish.

The answer to the question: choose the correct statement.  a) when ethane reacts with fluorine gas the product is less stable.b) addition reactions of unsaturated hydrocarbons and halogens requires a high activation energy.  c)the double covalent bond within unsaturated hydrocarbons requires a lot of energy to break.  d)the double covalent bond within unsaturated hydrocarbons can be broken easily.is: a) when ethane reacts with fluorine gas the product is less stable.